Demand Planner

Location:

Alhambra, CA (Hybrid)

Semtech is seeking a Demand Planner to own the demand forecast for assigned SPP product families at our Alhambra, California facility. This role sits at the center of the monthly Sales & Operations Planning (S&OP) cycle — translating sales input, distributor sell-through, and statistical baselines into a single consensus demand plan that drives supply commitments, inventory targets, and quarterly revenue execution.

The role extends beyond demand. The Demand Planner is also accountable for translating the consensus demand plan into an executable supply plan — running MRP, maintaining the bill of material and planning master data that drive it, and monitoring supply coverage against inventory, lead time, and service targets across the foundry and OSAT network.

The successful candidate is analytical, comfortable defending a forecast position with data, and able to work credibly with Sales, Business Unit leadership, Operations, and Finance. This is a high-visibility role: the output of this position directly informs wafer starts, assembly and test capacity bookings, and the revenue commitments the business makes to executive leadership.

• Own the baseline forecast. Build, maintain, and continuously improve statistical demand models in SAP APO for assigned SPP product families across a rolling 18-month horizon.

• Drive the consensus cycle. Lead the demand review step of the monthly S&OP process — prepare the pre-consensus package, reconcile Sales, BU, and statistical views, and publish the agreed demand plan on cycle.

• Segment and prioritize. Apply ABC/XYZ and volume-volatility segmentation so forecasting effort and model selection match the value and predictability of each part.

• Measure and close the loop. Track forecast accuracy (MAPE) and bias at multiple aggregation levels and lags; run root-cause analysis on major misses and drive corrective actions with the responsible stakeholders.

• Model demand scenarios. Quantify upside, downside, and design-win ramp scenarios; translate them into supply and inventory implications for the S&OP executive review.

• Convert plan to revenue. Partner with Order Management, Sales, and Operations to align backlog, scheduled ship dates, and supply availability against the quarterly revenue plan.

• Manage supply-demand balance. Identify shortages, allocation conflicts, and excess positions early; recommend pull-ins, push-outs, substitutions, or reallocation with a clear revenue and margin rationale.

• Improve linearity. Monitor weekly billings pace against plan, flag back-end-loaded risk, and drive actions that smooth quarterly shipment profiles.

• Support the quarterly close. Provide reliable weekly revenue outlooks and gap-to-plan analysis for BU and Finance review.

• Own upside and risk visibility. Maintain a documented view of committed, probable, and at-risk revenue, with the assumptions behind each clearly stated.

• Manage channel demand signals. Analyze distributor POS and POI data, inventory-in-channel positions, and sell-through trends; incorporate them into the demand plan rather than relying on ship-in alone.

• Collaborate with key accounts. Work with Sales and Customer Service on direct customer forecasts, EDI/portal signals, consignment and hub programs, and forecast commitments.

• Monitor channel inventory health. Track weeks-of-inventory at distribution and elevate over- or under-stocked positions before they distort demand.

• Validate demand quality. Reconcile customer forecasts against historical consumption and design-win pipeline; challenge unsupported step changes with data.

• Generate the…